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>Key and Mouse bindings</A
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><P
>All of the GTK range widgets react to mouse clicks in more or less
the same way. Clicking button-1 in the trough will cause its
adjustment's <TT
CLASS="LITERAL"
>page_increment</TT
> to be added or subtracted from its
<TT
CLASS="LITERAL"
>value</TT
>, and the slider to be moved accordingly. Clicking mouse
button-2 in the trough will jump the slider to the point at which the
button was clicked. Clicking button-3 in the trough of a range or any button on 
a scrollbar's arrows will cause its adjustment's value to change by
<TT
CLASS="LITERAL"
>step_increment</TT
> at a time.</P
><P
>Scrollbars are not focusable, thus have no key bindings. The key bindings
for the other range widgets (which are, of course, only active when the widget 
has focus) are do <I
CLASS="EMPHASIS"
>not</I
> differentiate between horizontal and 
vertical range widgets.</P
><P
>All range widgets can be operated with the left, right, up and down arrow
keys, as well as with the <TT
CLASS="LITERAL"
>Page Up</TT
> and <TT
CLASS="LITERAL"
>Page Down</TT
> 
keys. The arrows move the slider up and down by <TT
CLASS="LITERAL"
>step_increment</TT
>, while
<TT
CLASS="LITERAL"
>Page Up</TT
> and <TT
CLASS="LITERAL"
>Page Down</TT
> move it by 
<TT
CLASS="LITERAL"
>page_increment</TT
>.</P
><P
>The user can also move the slider all the way to one end or the other
of the trough using the keyboard. This is done with the <TT
CLASS="LITERAL"
>Home</TT
> 
and <TT
CLASS="LITERAL"
>End</TT
> keys.</P
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